A motor-driven dual-mode lock cylinder mechanism and door lock

Abstract

This invention relates to the field of smart lock technology, specifically to a motor-driven dual-mode lock cylinder mechanism and door lock. It includes a lock cylinder drive mechanism, a control terminal module, and a lock cylinder mechanism. The pins of the control terminal module are electrically connected to the lock cylinder drive mechanism and connected to an external power source. The lock cylinder mechanism abuts against the output end of the lock cylinder drive mechanism, controlling the locking and unlocking states of the lock cylinder mechanism. In use, a drive motor drives the lock cylinder power transmission component to rotate. A lock cylinder actuating slider, driven by the lock cylinder power transmission component and moving axially along the component, is provided on its surface. A locking component and a safety component are provided on the side of the actuating slider. The locking component is driven by the actuating slider to control the locking plate, or the safety component is driven to lock the swing angle of the locking component, achieving control of both ordinary locking and safety locking with a single motor.

Description

Technical Field

[0001] This invention relates to the field of smart lock technology, specifically to a dual-mode lock cylinder mechanism and door lock based on motor drive. Background Technology

[0002] A smart door lock is a device that uses a program to control a motor, which in turn drives the lock cylinder to move along a predetermined trajectory, thus locking and unlocking the lock.

[0003] A utility model patent entitled "Electric Door Lock and Vehicle" is published in Chinese Patent Publication No. CN217760519U, which includes: a housing; a locking plate with a hook; a first elastic element for elastically pushing the locking plate to rotate and unlock; a stop mechanism for elastically stopping and positioning the locking plate; a locking mechanism for moving the locking plate to rotate and lock; a cam for driving the stop mechanism away from the locking plate; and an unlocking motor for driving the cam to rotate.

[0004] As described in its instruction manual and its appendices Figure 3 It is known that the lock cylinder is driven directly by a motor to achieve locking and unlocking operations. This control method can only achieve ordinary locking functions. In order to prevent the use of tools to open the lock, traditional locks are equipped with a safety device to limit the movement of the lock cylinder. For example, the "Door Lock Rear Handle Device with Stopping Safety Structure" disclosed in patent CN 205172163 U is equipped with a separate safety device to prevent the lock from being opened by tools, thereby improving the security of the lock.

[0005] Based on the two existing technologies mentioned above, it is known that simultaneously controlling the lock cylinder and the safety device requires the use of two motors or manual operation, and it is impossible to control a single motor at the same time. Summary of the Invention

[0006] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a dual-mode lock cylinder mechanism and door lock based on motor drive, so as to solve the problem mentioned in the prior art that secondary locking cannot be achieved by a single motor door lock.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a dual-mode lock cylinder mechanism based on motor drive, comprising a lock cylinder drive mechanism, a control terminal module and a lock cylinder mechanism, wherein the pins of the control terminal module are electrically connected to the lock cylinder drive mechanism, the pins of the control terminal module are connected to an external power supply, and the lock cylinder mechanism abuts against the output end of the lock cylinder drive mechanism for controlling the locking and unlocking states of the lock cylinder mechanism; The lock cylinder driving mechanism includes a fixed bracket, on which a drive motor is supported. The output end of the drive motor is provided with a lock cylinder power transmission component, and the lock cylinder power transmission component is provided with a lock cylinder toggle slider. The lock cylinder toggle slider is linearly driven by the lock cylinder power transmission component. A first micro switch and a second micro switch are respectively provided on the top of the fixed bracket, and the first micro switch and the second micro switch are electrically connected to the control terminal module respectively; The lock cylinder mechanism includes a locking component and a safety component. The locking component and the safety component are arranged side by side on the side of the lock cylinder sliding block, and the locking component and the safety component can be driven sequentially by the lock cylinder sliding block. After the safety component is driven, it can constrain the swing of the locking component. The output end of the locking component is provided with a locking plate.

[0008] Preferably, the lock core power transmission component includes a driven gear, which meshes with the output end of the drive motor, and a support traction rod is provided on the shaft of the driven gear, and the surface of the support traction rod is provided with external threads; The lock cylinder actuating slider is disposed on the surface of the supporting traction rod, and the lock cylinder actuating slider is driven by the external thread to move horizontally along the axial direction of the supporting traction rod.

[0009] Preferably, the lock cylinder actuating slider includes a translation slider, which is threadedly connected to the surface of the supporting traction rod; The top of the translation slider is provided with a safety actuation groove, the front of the translation slider is provided with a lock cylinder drive block, and the top of the lock cylinder drive block is provided with a lock cylinder actuation groove. The safety actuation groove is an open groove used to drive the safety component to rotate, and the lock cylinder actuation groove is a U-shaped groove used to drive the locking component to rotate.

[0010] Preferably, the safety toggle groove and the lock cylinder toggle groove are each provided with micro switch contacts on the side near the first micro switch and the second micro switch, and the micro switch contacts can abut against the switch contacts of the first micro switch and the second micro switch respectively as the sliding slider moves.

[0011] Preferably, the locking component includes a locking swing arm and a stop pawl rivet shaft, wherein the locking swing arm has a shaft hole at its center, and the locking swing arm rotates about the shaft hole as the pivot point; One end of the locking arm extends into the interior of the lock cylinder actuation groove and is driven by the lock cylinder actuation groove. The other side of the locking swing arm is provided with a rotating shaft, and a locking connecting arm is hinged to the rotating shaft. An opening connecting arm is hinged to the end of the locking connecting arm away from the hinge point of the locking swing arm. The outer surface of the stop claw rivet shaft is rotatably connected to a stop claw rod; The opening connecting arm is L-shaped, and a connecting shaft is provided at the bend of the opening connecting arm for hinge connection. The end of the opening connecting arm away from the locking connecting arm abuts against the stop pawl rod, and the opening connecting arm can drive the stop pawl rod to restrict the rotation of the locking plate.

[0012] Preferably, the locking component further includes a buffer block fixing plate, wherein the buffer block fixing plate has a buffer block on the side facing the stop claw bar, and the bottom of the buffer block is elastically connected to the top of the locking plate.

[0013] Preferably, the safety component includes a safety transmission arm connecting shaft, a safety transmission arm is rotatably connected to the outer surface of the safety transmission arm connecting shaft, and a safety locking arm is hinged to the side of the safety transmission arm, the safety locking arm rotating with the rotation of the safety transmission arm; The safety locking arm can abut against the end of the opening connecting arm; The upper end of the safety transmission arm connecting shaft is provided with a safety transmission arm fixing plate.

[0014] A door lock includes a motor-driven dual-mode lock cylinder mechanism and a protective housing, the lock cylinder mechanism being mounted inside the protective housing.

[0015] Preferably, the protective housing includes a first lock shell, a separable second lock shell at the bottom of the first lock shell, and a separable third lock shell at the top of the first lock shell. The lock cylinder driving mechanism and the lock cylinder mechanism are both installed in the cavity between the first lock shell and the third lock shell. The control terminal module is mounted on the third lock housing and extends into the interior of the first lock housing. Both the first and second lock housings have lock grooves on their sides that are adapted to the locking plate.

[0016] Preferably, the first lock housing has an upper chamber and a lower chamber, and the upper chamber of the first lock housing is covered by a third lock housing; The stop pawl and the locking plate are both installed in the lower chamber of the first lock housing, and the stop pawl and the locking plate are covered and protected by the second lock housing.

[0017] Compared with the prior art, the beneficial effects of the present invention are: The present invention relates to a motor-driven dual-mode lock cylinder mechanism. By setting a drive motor to drive the lock cylinder power transmission component to rotate, and setting a lock cylinder actuating slider on the surface of the lock cylinder power transmission component, which moves along the axial direction of the lock cylinder power transmission component under the drive of the lock cylinder power transmission component, and setting a locking component and a safety component on the side of the lock cylinder actuating slider, the locking component is pushed to control the locking plate by driving the lock cylinder actuating slider, or the swing angle of the locking component is locked by pushing the safety component, thus achieving the effect of controlling ordinary locking and safety locking with a single motor.

[0018] The dual-mode lock cylinder mechanism based on motor drive of the present invention uses a first micro switch and a second micro switch respectively above the drive motor, and micro switch contacts adapted to the positions of the first and second micro switches on the lock cylinder sliding block. When the drive motor drives the lock cylinder sliding block to push the locking component to lock or unlock, the micro switch contacts contact the first micro switch to disconnect the power supply to the drive motor. When the drive motor is powered on again, the lock cylinder sliding block can be controlled to push the safety component to lock or unlock the locking component. During this process, the micro switch contacts contact the second micro switch to disconnect the power supply to the drive motor, achieving the effect of hierarchical control of ordinary locking and safety locking.

[0019] The dual-mode lock cylinder mechanism based on motor drive of the present invention sets the safety actuation groove as an opening and the lock cylinder actuation groove as a U-shaped groove, and keeps the end of the locking swing arm always in the lock cylinder actuation groove. During use, the swing of the locking component can be controlled by the translation of the sliding slider, so that locking and unlocking can be done at any time without the control of the safety component. The safety component, on the other hand, requires a secondary command to drive the safety actuation groove to collide with the safety component before it can lock the locking component, achieving the effect of convenient ordinary locking.

[0020] The dual-mode lock cylinder mechanism based on motor drive of the present invention, by setting a driven gear to mesh with the output end of the drive motor, and setting a support traction rod at the axis of the driven gear, and setting an external thread on the surface of the support traction rod to be threadedly connected to the lock cylinder moving slider, converts the rotational power of the driven gear into a horizontal driving force for the lock cylinder moving slider, and has a self-locking effect, achieving a compact structure and avoiding the locking plate from pushing the lock cylinder moving slider in the opposite direction. Attached Figure Description

[0021] Figure 1 This is a top view of the door lock structure of the present invention.

[0022] Figure 2 This is a bottom view of the structure of the door lock of the present invention.

[0023] Figure 3 This is a schematic diagram of the installation of the lock cylinder mechanism of the present invention.

[0024] Figure 4 This is a schematic diagram showing the connection between the lock cylinder drive mechanism and the lock cylinder mechanism of the present invention.

[0025] Figure 5 This is a top view showing the connection between the lock cylinder drive mechanism and the lock cylinder mechanism of the present invention.

[0026] Figure 6 This is a top view of the lock cylinder drive mechanism of the present invention.

[0027] Figure 7This is a schematic diagram of the lock cylinder driving mechanism of the present invention.

[0028] Figure 8 This is a schematic diagram of the power transmission component for the lock core of the present invention.

[0029] Figure 9 This is a schematic diagram showing the connection between the lock cylinder actuating slider and the lock cylinder power transmission component of the present invention.

[0030] Figure 10 This is a schematic diagram of the structure of the lock cylinder sliding block of the present invention.

[0031] Figure 11 This is a schematic diagram of the locking component of the present invention.

[0032] Figure 12 This is a schematic diagram of the structure of the safety component of the present invention.

[0033] Figure 13 This is a schematic diagram of the assembly of the first lock housing and the second lock housing of the present invention.

[0034] Figure 14 This is a schematic diagram of the assembly of the locking plate and the first lock housing of the present invention.

[0035] Component designation explanation: 1. Protective outer shell; 11. First locking shell; 12. Second locking shell; 13. Third locking shell; 2. Lock cylinder drive mechanism; 21. Fixed bracket; 22. Drive motor; 23. Lock cylinder power transmission component; 231. Driven gear; 232. Support traction rod; 233. External thread; 24. Lock cylinder actuating slider; 241. Translation slider; 242. Safety actuating groove; 243. Lock cylinder drive block; 244. Lock cylinder actuating groove; 25. First micro switch; 26. Second micro switch; 3. Control terminal module; 4. Lock cylinder mechanism; 41. Locking component; 411. Locking swing arm; 412. Locking connecting arm; 413. Opening connecting arm; 414. Stop pawl rivet shaft; 415. Stop pawl rod; 416. Buffer block fixing plate; 417. Buffer block; 42. Safety component; 421. Safety transmission arm connecting shaft; 422. Safety transmission arm; 423. Safety locking arm; 424. Safety transmission arm fixing plate; 43. Locking plate. Detailed Implementation

[0036] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0037] Please see Figures 1 to 14It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0038] like Figures 3-12 As shown, this invention provides a motor-driven dual-mode lock cylinder mechanism, including a lock cylinder drive mechanism 2, a control terminal module 3, and a lock cylinder mechanism 4. The lock cylinder drive mechanism 2 is used for power output to drive the lock cylinder mechanism 4 to perform locking and unlocking operations. The control terminal module 3 is provided with multiple pins. The pins of the control terminal module 3 are connected to an external power source to provide power and are connected to the human-machine interface device of the door lock to achieve signal interaction. The working mode of the lock cylinder drive mechanism 2 is controlled and switched by switching control signals. The control terminal module 3 is electrically connected to the lock cylinder drive mechanism 2 through different pins to control the power supply of the lock cylinder drive mechanism 2 and realize the start and stop of the lock cylinder drive mechanism 2. The lock cylinder mechanism 4 abuts against the output end of the lock cylinder drive mechanism 2. The lock cylinder mechanism 4 is driven by the movement of the output end of the lock cylinder drive mechanism 2, thereby controlling the locking and unlocking states of the lock cylinder mechanism 4.

[0039] Specifically, the lock cylinder drive mechanism 2 includes a fixed bracket 21, on which a drive motor 22 is supported. A drive gear is interference-fitted onto the output end of the drive motor 22, and a lock cylinder power transmission component 23 is provided at the output end of the drive motor 22. The lock cylinder power transmission component 23 meshes with the drive gear on the drive motor 22, thereby driving the lock cylinder power transmission component 23 to rotate. A lock cylinder actuating slider 24 is provided on the lock cylinder power transmission component 23. When the lock cylinder power transmission component 23 rotates, the lock cylinder actuating slider 24 is linearly driven by the lock cylinder power transmission component 23 to translate. The translated lock cylinder actuating slider 24 is used to push the lock cylinder mechanism 4, realizing the locking and unlocking operations of the lock.

[0040] A first micro switch 25 and a second micro switch 26 are respectively provided above the fixed bracket 21. The first micro switch 25 and the second micro switch 26 are electrically connected to the control terminal module 3. The first micro switch 25 is connected to pin 1 and pin 2 of the control terminal module 3, and the second micro switch 26 is connected to pin 1 and pin 3 of the control terminal module 3. Pin 1 is the common terminal of the first micro switch 25 and the second micro switch 26, while pin 2 and pin 3 are controlled to be switched on and off by the first micro switch 25 and the second micro switch 26, respectively, to control the start and stop of the drive motor 22 when the lock cylinder slide block 24 is in different positions.

[0041] The lock cylinder mechanism 4 includes a locking component 41 and a safety component 42. The locking component 41 is used for the ordinary locking of the lock, and the safety component 42 is used for the super locking (secondary safety locking) of the lock. The locking component 41 and the safety component 42 are arranged side by side on the side of the lock cylinder actuating slider 24. When the lock cylinder actuating slider 24 is driven to move by the lock cylinder power transmission component 23, the locking component 41 and the safety component 42 can be driven sequentially by the lock cylinder actuating slider 24. When the locking component 41 is driven, it controls the ordinary locking and unlocking of the lock, while when the safety component 42 is driven, it can constrain the locking component 41 to prevent the locking component 41 from rotating, thereby locking the locking component 41 and completing the secondary safety locking operation. The output end of the locking component 41 is provided with a locking plate 43. The locking plate 43 is a rotating structure with an opening. The locking component 41 drives the locking plate 43 to rotate, causing the opening to engage with the external locking tongue to achieve locking, or the opening to expose the external locking tongue to achieve unlocking. With the above structure, a single motor can be used to control the locking and unlocking of the locking component 41 and the safety component 42 respectively, reducing the manufacturing cost of the lock and improving the convenience of lock control.

[0042] like Figure 8As shown, in some embodiments, the lock cylinder power transmission component 23 of the present invention includes a driven gear 231, which meshes with the drive gear at the output end of the drive motor 22. The diameter of the driven gear 231 is larger than the diameter of the drive gear, thereby achieving a speed reduction effect and improving the stability of power output and the accuracy of driving the lock cylinder actuating slider 24. A support traction rod 232 is provided at the axis of the driven gear 231. The other end of the support traction rod 232 is rotatably connected to the inner wall of the fixed bracket 21, so that the support traction rod 232 is horizontally arranged inside the fixed bracket 21. The surface of the support traction rod 232 is provided with an external thread 233. The lock cylinder actuating slider 24 is disposed on the surface of the support traction rod 232 and is penetrated by the support traction rod 232. At the same time, the lock cylinder actuating slider 24 is threadedly connected to the external thread 233. When the support traction rod 232 rotates, the lock cylinder actuating slider 24 is driven by the external thread 233 to move horizontally along the axial direction of the support traction rod 232, thereby pushing the locking component 41 and the safety component 42. In order to improve the stability of the movement of the lock cylinder actuating slider 24, the bottom and side of the lock cylinder actuating slider 24 are restricted by the fixed bracket 21, so that the lock cylinder actuating slider 24 can only move in a predetermined direction.

[0043] like Figure 9 and Figure 10 As shown, in some embodiments, the lock cylinder actuating slider 24 of the present invention includes a translation slider 241. The side of the translation slider 241 is provided with a through threaded hole. The translation slider 241 is threadedly connected to the surface of the support traction rod 232 through the threaded hole. Thus, when the support traction rod 232 rotates, the translation slider 241 can be driven to move horizontally along the axial direction of the support traction rod 232 through the cooperation of the external thread 233 and the threaded hole, so as to drive the locking component 41 and the safety component 42 respectively.

[0044] The top of the sliding block 241 is provided with a safety actuation groove 242, and the front of the sliding block 241 is provided with a lock cylinder drive block 243. The top of the lock cylinder drive block 243 is provided with a lock cylinder actuation groove 244. The safety actuation groove 242 is an open groove used to drive the safety component 42 to rotate, and the lock cylinder actuation groove 244 is a U-shaped groove used to drive the locking component 41 to rotate. The purpose of making the safety actuation groove 242 an open groove is that when the sliding block 241 moves towards the safety component 42, the safety actuation groove 242 can drive the safety component 42 to achieve the locking function, and when the sliding block 241 moves in the opposite direction, the safety component 42 can disengage from the safety actuation groove 242 and will not continue to be driven by the safety actuation groove 242. The purpose of setting the lock cylinder actuation groove 244 as a U-shaped groove is to always maintain the drive of the locking component 41, so that when the translation slider 241 moves towards the safety component 42, the locking component 41 is driven to lock, and when the translation slider 241 moves in the opposite direction, the locking component 41 is driven to rotate in the opposite direction to unlock.

[0045] like Figure 4 , Figure 7 and Figure 10 As shown, in some embodiments, the safety actuation groove 242 and the lock cylinder actuation groove 244 of the present invention are each provided with micro switch contacts on the side near the first micro switch 25 and the second micro switch 26. The micro switch contacts can abut against the switch contacts of the first micro switch 25 and the second micro switch 26 respectively as the translation slider 241 moves. A gap is left between the two micro switch contacts, so that the two micro switch contacts are misaligned between the first micro switch 25 and the second micro switch 26. In use, firstly, power is supplied to pins one and two of the control terminal module 3, so that the drive motor 22 is powered on to drive the lock cylinder power transmission component 23 to rotate, and the lock cylinder toggle slider 24 is driven to move linearly through the lock cylinder toggle groove 244 on it. The linearly moving lock cylinder toggle slider 24 drives the locking component 41 to swing until the micro switch contact on the back of the lock cylinder toggle groove 244 abuts against the switch contact of the first micro switch 25, causing the drive motor 22 to be de-energized; at this time, the locking component 41 drives the locking plate 43 to be in the locking state. When pins one and three are energized, the drive motor 22 will drive the support traction rod 232 to continue moving the translation slider 241 in the current direction. Then, the safety toggle slot 242 will drive the safety component 42 to rotate, thereby locking the locking component 41. At this time, the micro switch contact on the back of the safety toggle slot 242 will gradually approach and trigger the switch contact on the second micro switch 26, so that pins one and three are de-energized and the translation slider 241 is maintained in its current position.

[0046] When the drive motor 22 is powered on, it drives the translation slider 241 to move in the reverse direction through the support traction rod 232. At this time, the safety actuation groove 242 will first release the lock on the safety component 42, and drive the locking component 41 to swing in the reverse direction through the lock cylinder actuation groove 244, thereby driving the locking plate 43 to unlock.

[0047] like Figure 11 As shown, in some embodiments, the locking component 41 of the present invention includes a locking swing arm 411 and a stop claw rivet shaft 414. The locking swing arm 411 is a curved connecting rod. One end of the locking swing arm 411 extends into the interior of the lock cylinder actuating groove 244 and is driven by the lock cylinder actuating groove 244. The other end is provided with a curved groove. The center of the locking swing arm 411 is provided with a shaft hole. The locking swing arm 411 rotates around the shaft hole as the pivot point. When the locking swing arm 411 is driven by the lock cylinder actuating groove 244, the other end of the locking swing arm 411 rotates accordingly to realize power transmission.

[0048] The other end of the locking swing arm 411 is provided with a pivot, and a locking connecting arm 412 is hinged through the pivot through a curved slot. When the locking swing arm 411 is driven to swing, the locking swing arm 411 will pull the locking connecting arm 412 to move in the corresponding direction.

[0049] An opening connecting arm 413 is hinged to the end of the locking connecting arm 412 away from the hinge point of the locking swing arm 411. A stop pawl rod 415 is rotatably connected to the outer surface of the stop pawl rivet shaft 414. The opening connecting arm 413 is L-shaped, with a connecting shaft hinged at the bend. The end of the opening connecting arm 413 away from the locking connecting arm 412 abuts against the stop pawl rod 415, and the opening connecting arm 413 can drive the stop pawl rod 415 to restrict the rotation of the locking plate 43. When locking, the stop pawl rod 415, driven by the opening connecting arm 413, abuts against the locking plate 43 to prevent the locking plate 43 from rotating under force, achieving the effect of ordinary locking. When unlocking, the opening connecting arm 413 drives the stop pawl rod 415 to move in the opposite direction, releasing the constraint of the stop pawl rod 415 on the locking plate 43, allowing the locking plate 43 to rotate and achieve the unlocking effect.

[0050] like Figure 11 As shown, in some embodiments, the locking component 41 of the present invention further includes a buffer block fixing plate 416, one end of which is fixed inside the lock. A buffer block 417 is provided on the side of the buffer block fixing plate 416 facing the stop pawl 415. The buffer block 417 is made of elastic material, and its bottom is elastically connected to the top of the locking plate 43. During locking and unlocking, the contact between the buffer block 417 and the locking plate 43 reduces the impact force when the locking plate 43 rotates; simultaneously, the elastic pressure provided by the buffer block 417 can drive the locking plate 43 to rotate back to its initial state.

[0051] like Figure 5 and Figure 12 As shown, in some embodiments, the safety component 42 of the present invention includes a safety transmission arm connecting shaft 421, which is fixed inside the lock. A safety transmission arm 422 is rotatably connected to the outer surface of the safety transmission arm connecting shaft 421. One end of the safety transmission arm 422 extends into the movement path of the safety actuation groove 242, so that the safety transmission arm 422 can be pushed by the safety actuation groove 242 and rotate about the safety transmission arm connecting shaft 421 as an axis. A safety locking arm 423 is hinged to the side of the other end of the safety transmission arm 422. When the safety transmission arm 422 is driven by the safety actuation groove 242, the safety locking arm 423 rotates with the rotation of the safety transmission arm 422, so that the safety locking arm 423 abuts against the end of the opening connecting arm 413 to restrict the movement of the opening connecting arm 413, thereby realizing the function of secondary safety locking.

[0052] The upper end of the safety transmission arm connecting shaft 421 is provided with a safety transmission arm fixing plate 424. The other end of the safety transmission arm fixing plate 424 is fixed inside the lock, thereby supporting the safety transmission arm connecting shaft 421 and limiting the safety transmission arm 422, thus improving the stability of the lock cylinder operation.

[0053] like Figure 1 and Figure 2 As shown, a door lock includes a motor-driven dual-mode lock cylinder mechanism and a protective housing 1. The lock cylinder mechanism is installed inside the protective housing 1 and is constrained, supported, and protected by the protective housing 1. The protective housing 1 has a corresponding interface and a slide groove for the bolt to enter and exit, wherein the interface is connected to an external human-machine interface device via a cable.

[0054] like Figures 1-3 , Figure 13 and Figure 14 As shown, in some embodiments, the protective housing 1 of the present invention includes a first lock housing 11, the interior of which has a cavity. A separable second lock housing 12 is provided at the bottom of the first lock housing 11, which protects the connection between the stop pawl 415 and the locking plate 43. Both the first and second lock housings 11 and 12 have locking grooves on their sides that fit the locking plate 43, allowing the bolt to move in and out to cooperate with the locking plate 43 to achieve the locking function. A separable third lock housing 13 is provided at the top of the first lock housing 11. The lock cylinder drive mechanism 2 and the lock cylinder mechanism 4 are both orderly installed in the cavity between the first and third lock housings 11 and are sealed and protected by the third lock housing 13.

[0055] The control terminal module 3 is mounted on the third lock housing 13. The wiring contacts of the control terminal module 3 extend into the interior of the first lock housing 11 and are connected to the drive motor 22 via the first micro switch 25 and the second micro switch 26. The other end of the control terminal module 3 is located outside the third lock housing 13 and is used to connect to external power supplies and human-machine interaction devices.

[0056] like Figure 13 and Figure 14 As shown, in some embodiments, the first lock housing 11 of the present invention has an upper chamber and a lower chamber. The lock cylinder drive mechanism 2, the locking swing arm 411, the locking connecting arm 412, the opening connecting arm 413 and the stop claw rivet shaft 414 in the locking component 41, and the safety component 42 are all installed in the upper chamber and are limited. At the same time, the upper chamber of the first lock housing 11 is covered and protected by a detachable third lock housing 13.

[0057] The stop claw 415 and the locking plate 43 are both installed in the lower chamber of the first lock housing 11, isolated from the components in the upper chamber, so as to reduce the impact of external factors on the equipment in the upper chamber, and the stop claw 415 and the locking plate 43 are covered and protected by the second lock housing 12.

[0058] In summary, when the dual-mode lock cylinder mechanism based on motor drive of the present invention is used, the drive motor 22 first drives the driven gear 231 to rotate in a predetermined direction according to the instruction. At this time, the support traction rod 232 located at the axis of the driven gear 231 will rotate accordingly, thereby driving the translation slider 241 to move in a predetermined direction through the external thread 233 on the surface of the support traction rod 232 and the threaded connection with the translation slider 241. The moving translation slider 241 drives the locking swing arm 411 to swing through the lock cylinder actuation groove 244 located on the top of the lock cylinder drive block 243 on its surface. The swinging locking swing arm 411 drives the locking connecting arm 412 and the opening connecting arm 413 to push the locking plate 43 to achieve locking or unlocking operation through the linkage action. During this process, the micro switch contact on the back of the lock cylinder actuation groove 244 will gradually approach and contact the switch contact on the surface of the first micro switch 25 until the first micro switch 25 disconnects the power supply to the drive motor 22 to achieve ordinary locking or unlocking. When the drive motor 22 continues to be powered, the lock cylinder toggle slider 24 continues to move in the locking direction; at this time, the safety toggle groove 242 at the top of the translation slider 241 will gradually push the safety transmission arm 422 to rotate around the safety transmission arm connecting shaft 421, and drive the safety locking arm 423 to abut against the side of the opening connecting arm 413, thereby restricting the rotation of the opening connecting arm 413 and realizing secondary locking to improve safety; at the same time, the micro switch contact on the back of the safety toggle groove 242 will gradually approach and contact the switch contact on the surface of the second micro switch 26, thereby disconnecting the power supply to the drive motor 22 through the second micro switch 26, so that the safety locking arm 423 remains locked to the opening connecting arm 413.

[0059] When unlocking, the drive motor 22 drives the lock cylinder to move the slider 24 in the reverse direction, thereby releasing the constraint of the safety toggle groove 242 on the safety locking arm 423, and pushing the locking swing arm 411 to rotate through the lock cylinder toggle groove 244, thereby driving the locking plate 43 in the reverse direction to achieve complete unlocking.

[0060] The above description is merely an illustrative embodiment of the present invention and is not intended to limit the scope of the invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention should fall within the scope of protection of the present invention. Furthermore, it should be noted that the components of the present invention are not limited to the overall application described above. Each technical feature described in the specification can be used individually or in combination as needed. Therefore, the present invention naturally covers other combinations and specific applications related to the inventive points of this case.

Claims

1. A dual-mode lock cylinder mechanism based on motor drive, characterized in that, It includes a lock cylinder drive mechanism (2), a control terminal module (3) and a lock cylinder mechanism (4). The pins of the control terminal module (3) are electrically connected to the lock cylinder drive mechanism (2) and the pins of the control terminal module (3) are connected to an external power supply. The lock cylinder mechanism (4) is in contact with the output end of the lock cylinder drive mechanism (2) and is used to control the locking and unlocking states of the lock cylinder mechanism (4). The lock cylinder drive mechanism (2) includes a fixed bracket (21), on which a drive motor (22) is supported. The output end of the drive motor (22) is provided with a lock cylinder power transmission component (23), and the lock cylinder power transmission component (23) is provided with a lock cylinder sliding block (24). The lock cylinder sliding block (24) is linearly driven by the lock cylinder power transmission component (23). A first micro switch (25) and a second micro switch (26) are respectively provided on the top of the fixed bracket (21). The first micro switch (25) and the second micro switch (26) are electrically connected to the control terminal module (3). The lock cylinder mechanism (4) includes a locking component (41) and a safety component (42). The locking component (41) and the safety component (42) are arranged side by side on the side of the lock cylinder sliding block (24). The locking component (41) and the safety component (42) can be driven sequentially by the lock cylinder sliding block (24). After the safety component (42) is driven, it can constrain the swing of the locking component (41). The output end of the locking component (41) is provided with a locking plate (43).

2. The dual-mode lock cylinder mechanism based on motor drive according to claim 1, characterized in that: The lock core power transmission component (23) includes a driven gear (231), which meshes with the output end of the drive motor (22). The shaft of the driven gear (231) is provided with a support traction rod (232), and the surface of the support traction rod (232) is provided with an external thread (233). The lock cylinder actuating slider (24) is disposed on the surface of the support traction rod (232), and the lock cylinder actuating slider (24) is driven by the external thread (233) to move horizontally along the axial direction of the support traction rod (232).

3. The dual-mode lock cylinder mechanism based on motor drive according to claim 2, characterized in that: The lock cylinder actuating slider (24) includes a translation slider (241), which is threadedly connected to the surface of the support traction rod (232); The top of the translation slider (241) is provided with a safety actuation groove (242), the front of the translation slider (241) is provided with a lock cylinder drive block (243), and the top of the lock cylinder drive block (243) is provided with a lock cylinder actuation groove (244). The safety actuation groove (242) is an open groove used to drive the safety component (42) to rotate, and the lock cylinder actuation groove (244) is a U-shaped groove used to drive the locking component (41) to rotate.

4. The dual-mode lock cylinder mechanism based on motor drive according to claim 3, characterized in that: The safety toggle groove (242) and the lock cylinder toggle groove (244) are both provided with micro switch contacts on the side near the first micro switch (25) and the second micro switch (26). The micro switch contacts can contact the switch contacts of the first micro switch (25) and the second micro switch (26) respectively as the translation slider (241) moves.

5. A dual-mode lock cylinder mechanism based on motor drive according to claim 4, characterized in that: The locking component (41) includes a locking swing arm (411) and a stop claw rivet shaft (414). The locking swing arm (411) has a shaft hole at its center and rotates around the shaft hole as the pivot point. One end of the locking swing arm (411) extends into the interior of the lock cylinder actuation groove (244) and is driven by the lock cylinder actuation groove (244); The other end of the locking swing arm (411) is provided with a pivot, and a locking connecting arm (412) is hinged to the pivot. An opening connecting arm (413) is hinged to the end of the locking connecting arm (412) away from the hinge point of the locking swing arm (411). The outer surface of the stop claw rivet shaft (414) is rotatably connected to the stop claw rod (415). The opening connecting arm (413) is L-shaped, and the corner of the opening connecting arm (413) is provided with a connecting shaft hinge. The end of the opening connecting arm (413) away from the locking connecting arm (412) abuts against the stop pawl (415), and the opening connecting arm (413) can drive the stop pawl (415) to restrict the rotation of the locking plate (43).

6. A dual-mode lock cylinder mechanism based on motor drive according to claim 5, characterized in that: The locking component (41) also includes a buffer block fixing plate (416), on which a buffer block (417) is provided on the side facing the stop claw rod (415), and the bottom of the buffer block (417) is elastically connected to the top of the locking plate (43).

7. A dual-mode lock cylinder mechanism based on motor drive according to claim 6, characterized in that: The safety component (42) includes a safety transmission arm connecting shaft (421), a safety transmission arm (422) is rotatably connected to the outer surface of the safety transmission arm connecting shaft (421), a safety locking arm (423) is hinged to the side of the safety transmission arm (422), and the safety locking arm (423) rotates with the rotation of the safety transmission arm (422). The safety locking arm (423) may abut against the end of the opening connecting arm (413); The upper end of the safety transmission arm connecting shaft (421) is provided with a safety transmission arm fixing plate (424).

8. A door lock, characterized in that: The door lock includes a motor-driven dual-mode lock cylinder mechanism as described in any one of claims 1-7 and a protective housing (1), wherein the lock cylinder mechanism is installed inside the protective housing (1).

9. A door lock according to claim 8, characterized in that: The protective housing (1) includes a first lock housing (11), a separable second lock housing (12) is provided at the bottom of the first lock housing (11), and a separable third lock housing (13) is provided at the top of the first lock housing (11). The lock cylinder driving mechanism (2) and the lock cylinder mechanism (4) are both installed in the cavity between the first lock housing (11) and the third lock housing (13). The control terminal module (3) is installed on the third lock housing (13) and extends into the interior of the first lock housing (11). The sides of the first lock housing (11) and the second lock housing (12) are provided with lock grooves that are compatible with the locking plate (43).

10. A door lock according to claim 9, characterized in that: The first lock shell (11) has an upper chamber and a lower chamber, and the upper chamber of the first lock shell (11) is covered by the third lock shell (13); The stop claw (415) and the locking plate (43) are both installed in the lower chamber of the first lock housing (11), and the stop claw (415) and the locking plate (43) are covered and protected by the second lock housing (12).

Images